The Casio fx-115ES Plus 2nd Edition is a refined version of a reliable engineering tool, specifically designed for industrial hardening and professional exam use. The housing is made from a high-impact ABS polymer with a matte texture that resists micro-scratches. This model is widely recognized for its compliance with professional licensure exam requirements.
Specifications indicate that the 2nd Edition features an updated "keyed" slider case, which provides extra clearance for the keys to help prevent unintended button presses when the unit is packed tightly. It utilizes a dual-power system (solar and battery), ensuring the device stays operational in various environments. The internal components include carbon-contact silicone domes, designed to provide a steady tactile feel for the user.
Build and Design Highlights
- Dual power redundancy helps maintain functionality during critical testing situations.
- The high-impact chassis is built for the rigors of engineering study and field use.
- Textured finish and revised keys provide a 15% reduction in lateral "play" for better accuracy.
The "Natural Textbook Display" is optimized for direct viewing on a desk, making math expressions easy to read. To help maintain the integrity of the LCD, it is best to avoid applying high-torque pressure to the screen area. The solar cell is highly efficient, allowing the device to bridge power needs seamlessly during low-light conditions.
For a version specifically focused on introductory fraction work for younger students, the Casio fx-55PLUS is an excellent alternative.
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